/Engine/Plugins/FX/Niagara/Source/NiagaraShader/Public/NiagaraShared.h
Note: SetRenderingThreadShaderMap must also be called with the same value, but from the rendering thread.
void SetGameThreadShaderMap ( [FNiagaraShaderMap](API\Plugins\NiagaraShader\FNiagaraShaderMap) * InShaderMap )